Company lists · Data refreshed September 2026

Top 25 Manhattan cybersecurity firms based in France

Name: Manhattan cybersecurity firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 84 companies tracked

RevenueBase identified 84 manhattan cybersecurity firms headquartered in France as of September 2026 and tracks 2,194 professional contacts across them, including 888 with verified work emails. Paris is the largest hub.

This list covers manhattan cybersecurity firms headquartered in France, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

84Companies

2,194Contacts tracked

888Verified emails

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The 25 largest manhattan cybersecurity firms based in France

Ranked by team size

Top 25 of 84 manhattan cybersecurity firms based in France, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to manhattan cybersecurity firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	I-Tracing	Partial evidence	Courbevoie, FranceHQ checked Sep 21, 2026	1,001-5,000	639 contacts →
	Partial evidence “I-TRACING, pure player and cybersecurity service provider leader in France, supports over 600 clients around the world in managing their cyber risks, from anticipating threats to…” Source: RevenueBase Database · checked Sep 21, 2026
2	own.security	Partial evidence	Paris, FranceHQ checked Sep 21, 2026	51-200	506 contacts →
	Partial evidence “Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.” Source: RevenueBase Database · checked Sep 21, 2026
3	CS In Cybersecurity	Indirect evidence	Le Plessis-robinson, FranceHQ checked Sep 21, 2026	51-200	75 contacts →
	Indirect evidence “Acteur majeur de la cybersécurité, CS Group s'appuie sur ses équipes sont composées d’experts pluridisciplinaires qui offrent à nos clients une vision claire et une capacité…” Source: RevenueBase Database · checked Sep 21, 2026
4	Dcit Conseil	Indirect evidence	Sene, FranceHQ checked Sep 21, 2026	n/a	47 contacts →
	Indirect evidence “DCIT Conseil, société de services de consultation spécialisée dans la cybersécurité et les technologies de l'information.” Source: RevenueBase Database · checked Sep 21, 2026
5	Five Nines	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	11-50	25 contacts →
	Indirect evidence “Five Nines est née en 2019 d’un constat simple, celui d’un manque crucial de compétences et d’expérience dans la sécurisation de la transformation digitale des entreprises.” Source: RevenueBase Database · checked Sep 21, 2026
6	Bluetrusty	Indirect evidence	Boulogne-billancourt, FranceHQ checked Sep 21, 2026	11-50	20 contacts →
	Indirect evidence “BlueTrusty is the Cyber security practice of ITS Group.” Source: RevenueBase Database · checked Sep 21, 2026
7	Intuity	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “Nous aidons les entreprises à sécuriser leurs actifs, tels que leurs applications web et leurs systèmes d'information, tout en renforçant la sécurité globale des organisations.” Source: RevenueBase Database · checked Sep 21, 2026
8	u.neat	Indirect evidence	Paris-lyon-aix/marseille, FranceHQ checked Sep 21, 2026	11-50	15 contacts →
	Indirect evidence “Nous veillons sur la sécurité de votre Système d’Information.” Source: RevenueBase Database · checked Sep 21, 2026
9	DND Agency	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	11-50	13 contacts →
	Indirect evidence “Are we legion?” Source: RevenueBase Database · checked Sep 21, 2026
10	AKYL	Indirect evidence	Pantin, FranceHQ checked Sep 21, 2026	1-10	11 contacts →
	Indirect evidence “LA CYBERSÉCURITÉ, VERSION AKYL Une approche aussi pragmatique que passionnée.” Source: RevenueBase Database · checked Sep 21, 2026
11	Limon IT	Indirect evidence	Saint-étienne, FranceHQ checked Sep 21, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
12	Gen&sis	Partial evidence	Puteaux, FranceHQ checked Sep 21, 2026	1-10	6 contacts →
	Partial evidence “GEN & SIS, a consulting company dedicated to Cybersecurity, supports you in securing your information system through its services” Source: RevenueBase Database · checked Sep 21, 2026
13	CSM Cyber Sécurité Management	Indirect evidence	Bastia, FranceHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “CSM ne vous protège pas seulement contre les malwares et les rançongiciels : nous protégeons votre entreprise dans son ensemble et proposons des services et solutions de…” Source: RevenueBase Database · checked Sep 21, 2026
14	WELAN	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “WELAN est une société de conseil en cybersécurité qui accompagne les entreprises de toutes tailles désireuses de se protéger contre les menaces numériques croissantes.” Source: RevenueBase Database · checked Sep 21, 2026
15	Anguis	Indirect evidence	Toulouse, FranceHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “Chez Anguis, nous sommes bien plus qu'une entreprise de sécurité informatique : nous sommes des architectes de la confiance numérique.” Source: RevenueBase Database · checked Sep 21, 2026
16	Hozzeo Cybersecurity	Partial evidence	Lyon, FranceHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “Pure Player de la cybersécurité opérationnelle défensive et offensive, Hozzeo Cybersecurity, entité de l'écosystème Hozzeo Group, accompagne les entreprises et collectivités dans…” Source: RevenueBase Database · checked Sep 21, 2026
17	Akaoma	Partial evidence	Jouy Sur Eure, FranceHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “AKAOMA – Your Cybersecurity Partner Since 2002, AKAOMA has been supporting businesses, institutions, and organizations in facing ever-growing cyber threats.” Source: RevenueBase Database · checked Sep 21, 2026
18	Novastill	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “NovaStill a la conviction profonde que la cybersécurité est un catalyseur du succès de nos clients qui sont aussi nos partenaires.” Source: RevenueBase Database · checked Sep 21, 2026
19	Cyberevive	Indirect evidence	Lille, FranceHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “We detect vulnerabilities, identify the most important assets, prioritize the most serious breaches, decide what actions to take, mitigate and control compliances and protect…” Source: RevenueBase Database · checked Sep 21, 2026
20	MA Cyber	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “MA Cyber vous accompagne dans la sécurisation de votre système d'information.” Source: RevenueBase Database · checked Sep 21, 2026
21	Cyberxl	Indirect evidence	La Rochelle, FranceHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “CyberXL aide les entreprises à se prémunir des cyberattaques.” Source: RevenueBase Database · checked Sep 21, 2026
22	Caeirus	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “Fondé en 2017, CAEIRUS est un cabinet d'expertise spécialisé en cybersécurité qui accompagne les entreprises à répondre aux problématiques sécurité au sein de leur système…” Source: RevenueBase Database · checked Sep 21, 2026
23	Alenatec	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “Alenatec est votre partenaire idéal pour votre sécurité informatique : notre réactivité, notre souplesse, nos compétences et notre expérience vous apporteront le soutien…” Source: RevenueBase Database · checked Sep 21, 2026
24	Exohsi	Indirect evidence	Grenoble, FranceHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “Le dragon qui veille sur votre trésor numérique Dans un monde où les données sont des joyaux précieux, EXOHSI se dresse contre l’ennemi, ce dernier, prêt à tout pour vous voler…” Source: RevenueBase Database · checked Sep 21, 2026
25	Ferroxyde	Indirect evidence	Carhaix, FranceHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “La cybersécurité est un enjeu majeur que chaque entreprise doit prendre au sérieux.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: manhattan cybersecurity firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names manhattan cybersecurity firms.
Partial evidence: Its own public description names part of manhattan cybersecurity firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name manhattan cybersecurity firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 84 manhattan cybersecurity firms based in France

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Manhattan cybersecurity firms based in France at a glance

As of Sep 21, 2026

40.5%Verified-email coverage

26.1Average contacts per company

1-10Median size (employees)

29.8%Largest-city concentration · Paris

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 84 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among manhattan cybersecurity firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in France whose own description of what they do matches “manhattan cybersecurity firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names manhattan cybersecurity firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among manhattan cybersecurity firms, and records with no verified work email. Companies headquartered outside France are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 888 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Manhattan cybersecurity firms by metro

Manhattan cybersecurity firms in Paris25

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names manhattan cybersecurity firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many manhattan cybersecurity firms are there based in France?

RevenueBase identified 84 manhattan cybersecurity firms headquartered in France as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

I-Tracing, headquartered in Courbevoie, tops this list with the largest team on record.

Which city has the most manhattan cybersecurity firms?

Paris leads with 25 headquartered companies, followed by Boulogne-Billancourt (2) and Caen (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 888 verified decision-maker contacts tracked across these 84 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.